2.2.0.7 false CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) (USD $) 001000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) true false In Millions, except Per Share data false false 1 USD false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u002 Standard http://www.xbrl.org/2003/instance shares xbrli 0 u003 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 u001 Standard http://www.xbrl.org/2003/instance pure xbrli 0 $ false 2 USD false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u002 Standard http://www.xbrl.org/2003/instance shares xbrli 0 u003 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 u001 Standard http://www.xbrl.org/2003/instance pure xbrli 0 $ false 3 USD false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u001 Standard http://www.xbrl.org/2003/instance pure xbrli 0 u002 Standard http://www.xbrl.org/2003/instance shares xbrli 0 u003 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 4 USD false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u002 Standard http://www.xbrl.org/2003/instance shares xbrli 0 u003 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 u001 Standard http://www.xbrl.org/2003/instance pure xbrli 0 $ 2 0 us-gaap_IncomeStatementAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 1 us-gaap_Revenues us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 true true false false 3591000000 3591 false false false 2 true true false false 3811000000 3811 false false false 3 true true false false 7213000000 7213 false false false 4 true true false false 7515000000 7515 false false false xbrli:monetaryItemType monetary Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 true 4 1 us-gaap_OperatingExpensesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 5 2 nee_FuelPurchasedPowerAndInterchangeExpense nee false na duration Fuel, energy and capacity charges incurred to produce electricity, net of any deferral or recovery of in accordance with... false false false false false false false false false false false terselabel false 1 false true false false 1455000000 1455 false false false 2 false true false false 1797000000 1797 false false false 3 false true false false 2804000000 2804 false false false 4 false true false false 3609000000 3609 false false false xbrli:monetaryItemType monetary Fuel, energy and capacity charges incurred to produce electricity, net of any deferral or recovery of in accordance with Statement of Financial Accounting Standard No.71. Includes amortization of nuclear fuel. No authoritative reference available. false 6 2 nee_OtherOperationsAndMaintenanceExpenses nee false na duration All operating and maintenance expenses that are associated with the entity's normal revenue producing operation, excluding... false false false false false false false false false false false terselabel false 1 false true false false 752000000 752 false false false 2 false true false false 672000000 672 false false false 3 false true false false 1411000000 1411 false false false 4 false true false false 1291000000 1291 false false false xbrli:monetaryItemType monetary All operating and maintenance expenses that are associated with the entity's normal revenue producing operation, excluding any expenses reported in other line items in the income statement. No authoritative reference available. false 7 2 nee_DepreciationAndAmortizationExcludingNuclearFuel nee false na duration The current period expense charged against earnings on long-lived, physical assets used in the normal conduct of business and... false false false false false false false false false false false terselabel false 1 false true false false 386000000 386 false false false 2 false true false false 435000000 435 false false false 3 false true false false 800000000 800 false false false 4 false true false false 844000000 844 false false false xbrli:monetaryItemType monetary The current period expense charged against earnings on long-lived, physical assets used in the normal conduct of business and not intended for resale to allocate or recognize the cost of assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset. Examples include buildings, production equipment and customer lists. Excludes amortization of nuclear fuel. No authoritative reference available. false 8 2 nee_TaxesOtherThanIncomeTaxes nee false na duration Taxes other than income taxes include, but are not limited to, property taxes, franchise taxes, federal and state... false false false false false false false false false false false terselabel false 1 false true false false 289000000 289 false false false 2 false true false false 302000000 302 false false false 3 false true false false 550000000 550 false false false 4 false true false false 583000000 583 false false false xbrli:monetaryItemType monetary Taxes other than income taxes include, but are not limited to, property taxes, franchise taxes, federal and state unemployment taxes, FICA, regulatory assessment fees and gross receipts taxes. No authoritative reference available. false 9 2 us-gaap_OperatingExpenses us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 2882000000 2882 false false false 2 false true false false 3206000000 3206 false false false 3 false true false false 5565000000 5565 false false false 4 false true false false 6327000000 6327 false false false xbrli:monetaryItemType monetary Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No authoritative reference available. true 10 1 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 709000000 709 false false false 2 false true false false 605000000 605 false false false 3 false true false false 1648000000 1648 false false false 4 false true false false 1188000000 1188 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. true 11 1 nee_TotalOtherDeductionsNetAbstract nee false na duration No definition available. false false false false false true false false false false false terselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 12 2 nee_InterestExpenseAggregateExpenses nee false na duration The aggregate interest expense incurred on commercial paper, long-term debt, capital leases, customer deposits, and all other... false false false false false false false false false false false terselabel false 1 false true false false -247000000 -247 false false false 2 false true false false -215000000 -215 false false false 3 false true false false -485000000 -485 false false false 4 false true false false -426000000 -426 false false false xbrli:monetaryItemType monetary The aggregate interest expense incurred on commercial paper, long-term debt, capital leases, customer deposits, and all other borrowings, including debt related commitment fees and debt issuance costs. Amounts is reported net of interest capitalized in accordance with Statement of Financial Accounting Standard No. 34 and net of any allowance for borrowed used during construction in accordance with Statement of Financial Accounting Standard No. 71 Paragraph 15. No authoritative reference available. false 13 2 us-gaap_IncomeLossFromEquityMethodInvestments us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 15000000 15 false false false 2 false true false false 13000000 13 false false false 3 false true false false 23000000 23 false false false 4 false true false false 20000000 20 false false false xbrli:monetaryItemType monetary This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. Such amount typically reflects adjustments similar to those made in preparing consolidated statements, including adjustments to eliminate intercompany gains and losses, and to amortize, if appropriate, any difference between cost and underlying equity in net assets of the investee at the date of investment. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph c Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 6 -Subparagraph b false 14 2 nee_AllowanceForEquityFundsUsedDuringConstruction nee false na duration The allowance for cost of equity funds used during construction, capitalized as part of the cost of plant and equipment for... false false false false false false false false false false false terselabel false 1 false true false false 9000000 9 false false false 2 false true false false 15000000 15 false false false 3 false true false false 15000000 15 false false false 4 false true false false 31000000 31 false false false xbrli:monetaryItemType monetary The allowance for cost of equity funds used during construction, capitalized as part of the cost of plant and equipment for the portion financed by equity. No authoritative reference available. false 15 2 nee_InterestIncome nee false na duration Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time... false false false false false false false false false false false terselabel false 1 false true false false 28000000 28 false false false 2 false true false false 17000000 17 false false false 3 false true false false 47000000 47 false false false 4 false true false false 43000000 43 false false false xbrli:monetaryItemType monetary Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. Also includes interest recovered from ratepayers as permitted by regulators on under recovered storm costs and interest recorded on unrecognized tax benefits in accordance with FASB Interpretation No. 48. No authoritative reference available. false 16 2 us-gaap_GainsLossesOnSalesOfAssets us-gaap true credit duration No definition available. false false false false false false false false false false false label false 1 false true false false 9000000 9 false false false 2 false true false false 5000000 5 false false false 3 false true false false 48000000 48 false false false 4 false true false false 12000000 12 false false false xbrli:monetaryItemType monetary The net gain or loss resulting from the sale, transfer, termination, or other disposition of assets during the period, excluding transactions involving capital leases, assets-held- or available-for-lease, and other real estate owned which, to the extent appropriate, are included in gains (losses) on the disposition of assets in nonoperating income (expense). No authoritative reference available. false 17 2 nee_OtherThanTemporaryImpairmentLossesOnSecuritiesHeldInNuclearDecommissioningFunds nee false credit duration No definition available. false false false false false false false false false false false false 1 false true false false -13000000 -13 false false false 2 false true false false -1000000 -1 false false false 3 false true false false -15000000 -15 false false false 4 false true false false -54000000 -54 false false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 18 2 us-gaap_OtherNonoperatingIncomeExpense us-gaap true credit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -16000000 -16 false false false 2 false true false false 2000000 2 false false false 3 false true false false -17000000 -17 false false false 4 false true false false 10000000 10 false false false xbrli:monetaryItemType monetary The net amount of other nonoperating income and expense, which does not qualify for separate disclosure on the income statement under materiality guidelines. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 false 19 2 nee_TotalOtherDeductionsNet nee false na duration The aggregate amount of income (expense) of non-operating activities (that is to say, excluding activities not considered... false false false false false false false false false false false totallabel false 1 false true false false -215000000 -215 false false false 2 false true false false -164000000 -164 false false false 3 false true false false -384000000 -384 false false false 4 false true false false -364000000 -364 false false false xbrli:monetaryItemType monetary The aggregate amount of income (expense) of non-operating activities (that is to say, excluding activities not considered part of the operations of the business), not separately disclosed in the income statement due to materiality considerations No authoritative reference available. true 20 1 nee_NetIncomeBeforeIncomeTaxes nee false na duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 494000000 494 false false false 2 false true false false 441000000 441 false false false 3 false true false false 1264000000 1264 false false false 4 false true false false 824000000 824 false false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. true 21 1 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 77000000 77 false false false 2 false true false false 71000000 71 false false false 3 false true false false 291000000 291 false false false 4 false true false false 90000000 90 false false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b false 22 1 nee_NetIncomeLossConsolidatedProfit nee false credit duration The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the... false false false false false false false false false false false totallabel false 1 true true false false 417000000 417 false false false 2 true true false false 370000000 370 false false false 3 true true false false 973000000 973 false false false 4 true true false false 734000000 734 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. No authoritative reference available. true 23 1 us-gaap_EarningsPerShareAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 24 2 us-gaap_EarningsPerShareBasic us-gaap true na duration No definition available. false false false false false false false false false false false true 1 true true false false 1.02 1.02 false false false 2 true true false false 0.92 0.92 false false false 3 true true false false 2.38 2.38 false false false 4 true true false false 1.82 1.82 false false false us-types:perShareItemType decimal The amount of net income or loss for the period per each share of common stock outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 36, 37, 38 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 false 25 2 us-gaap_EarningsPerShareDiluted us-gaap true na duration No definition available. false false false false false false false false false false false terselabel true 1 true true false false 1.01 1.01 false false false 2 true true false false 0.91 0.91 false false false 3 true true false false 2.37 2.37 false false false 4 true true false false 1.81 1.81 false false false us-types:perShareItemType decimal The amount of net income or loss for the period per each share of common stock and dilutive common stock equivalents outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 11, 12, 36 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 false 26 1 us-gaap_CommonStockDividendsPerShareCashPaid us-gaap true na duration No definition available. false false false false false false false false false false false true 1 true true false false 0.50 0.50 false false false 2 true true false false 0.4725 0.4725 false false false 3 true true false false 1.00 1.00 false false false 4 true true false false 0.9450 0.9450 false false false us-types:perShareItemType decimal Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 false 27 1 us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 28 2 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 408900000 408.9 false false false 2 false true false false 403700000 403.7 false false false 3 false true false false 408200000 408.2 false false false 4 false true false false 403000000 403.0 false false false xbrli:sharesItemType shares Number of [basic] shares, after adjustment for contingently issuable shares and other shares not deemed outstanding, determined by relating the portion of time within a reporting period that common shares have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 171 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8 false 29 2 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding us-gaap true na duration No definition available. false false false false false false false false false false false false 1 false true false false 411400000 411.4 false false false 2 false true false false 406400000 406.4 false false false 3 false true false false 410700000 410.7 false false false 4 false true false false 405600000 405.6 false false false xbrli:sharesItemType shares The average number of shares issued and outstanding that are used in calculating diluted EPS, determined based on the timing of issuance of shares in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8 false 4 28 false Millions HundredThousands NoRounding false true